Mathematics High School

Use a graphical method to find estimates for the solutions of the simultaneous equations x^2 + y^2=2.25 y-x=1
NEED ASAP WILL MARK AS BRAINLIEST

Use A Graphical Method To Find Estimates For The Solutions Of The Simultaneous Equations X^2 + Y^2=2.25

Answers

Answer 1

Answer:

A) which graph represents the equation x^2 + y^2 = 2.25?

First, the general equation for a circle can be written as:

(x - a)^2 + (y - b)^2 = R^2

This is a circle of radius R centered in the point (a, b).

Then we can rewrite our equation as:

(x - 0)^2 + (y - 0)^2 = (√2.25)^2 = (1.5)^2

Then we have a circle centered at the point (0, 0) and with a radius equal to 1.5

Then we can see that the correct one is graph C.

b) Now we want to solve the system:

x^2 + y^2 = 2.25

y - x = 1

graphically.

To do it we need to graph both equations and see in which points do they intersect.

We already have the first equation graphed, so we only need to also graph the linear equation:

y - x = 1

y = 1 + x

An example of this can be seen in the graph below:

There we can estimate one of the intersections as (0.4, 1.4) and the other as (-1.4, -0.4)

Use A Graphical Method To Find Estimates For The Solutions Of The Simultaneous Equations X^2 + Y^2=2.25

Related Questions

AMY RAN 20 MILES MORE THAN JIMMY LAST WEEK, AMY
RAN 32 MILES. HOW MANY MILES DID JIMMY RUN?
Algebra math show your work

Answers

Answer:

Jimmy ran 12 miles last week.

Step-by-step explanation:

32-20=12

Hola children help me pls

Answers

Answer:

31

Step-by-step explanation:

The entire straight line is 180 degrees. So, if angle a is 25 degrees we would subtract that from 180. This would give us 155 degrees. You would then add 2x and 3x together to get 5x. 155/5x would be 31. Your x value is then 31.

Answer and Step-by-step explanation:

We know that a is equal to 25.

Let's subtract that from the entire angle measure of line segment AB, which is 180.

180 - 25 = 155.

Now, we need to find the value of x. We can do this by adding together the other two angles, and equal it to 155.

155 = 2x + 3x

155 = 5x

31 = x

So, the value of x is 31.

#teamtrees #PAW (Plant And Water)

What is the rock cycle? Select the best two answers from the choices below.

a
The primary indicator of climate change
b
A series of processes that create and transform the types of rocks in Earth's crust
c
A concept in geology that describes transitions and relationships among the three main rock types
d
A way to show how Earth's different spheres interact with one another

Answers

Answer:

A concept in geology that describes transitions and relationships among the three main rock types

please mark as brainliest.

Answer:

b. A concept in geology that describes transitions and relationships among the three main rock types. and

c. A series of processes that create and transform the types of rocks in Earth's crust

Step-by-step explanation:

ive studied and this is correct because i took the test and i  got it correct

please give me 5 stars

please find the sum of difference of (-12) + (-38)

will give brainliest

Answers

-50
Signs are same , you need to add them

Mrs. King has earned a pay increase. Her starting salary
was $36,000. Her new salary is 110% of her starting salary.
What is her new salary?

Answers

Answer:

39,600

Step-by-step explanation:

Free answer

Marcos sells snow cones in the summer. He uses a cone with a radius of 1.5 inches and a height of 5 inches. If he fills the snow cone to the rim with ice before pouring on the syrup. About how much ice will it take to fill the cone?​

Answers

Answer: [tex]11.78\ in.^3[/tex]

Step-by-step explanation:

Given

Radius of cone [tex]r=1.5\ in.[/tex]

Height of cone [tex]h=5\ in.[/tex]

Ice required to fill the cone=Volume of cone

The volume of a cone is

[tex]V=\dfrac{1}{3}\pi r^2h[/tex]

Put values

[tex]\Rightarrow V=\dfrac{1}{3}\times \dfrac{22}{7}\times 1.5^2\times 5=11.78\ in.^3[/tex]

2
A housekeeper had
3
of a spray bottle of a cleaning solution. He used
How much of the bottle did he use?



Answers

Answer: 123

Step-by-step explanation: Stop cheating idiot

FIND THE THE
MISSING ANGLE:
31°
29

Answers

Answer:

120°

Step-by-step explanation:

31 + 29 = 60

180 - 60 = 120

42.44 I believe is the answer

What is the area of the figure on the cordinate plane below

Answers

Answer:

where is the coordinate plane?

Step-by-step explanation:

Answer:

No picture please add it next time and make sure to double check if its there.

Drag numbers to the table so it shows a proportional relationship between x and y.

Answers

Sorry but you didn’t put a table but at least I can answer this a table can be shown by following the same rule by adding, subtracting, multiplication or division. Sorry for the inconvenience!

Answer

Sorry but you didn’t put a table but at least I can answer this a table can be shown by following the same rule by adding, subtracting, multiplication or division. yeah thats right

Step-by-step explanation:

cant not solve unless u explain

write as y=mx+b
passes through (-3,7) with a slope of [tex]\frac{3}{2}[/tex]
passes through (7,0) and 0,-5)

Answers

Answer:

yrheyetegegetehegehehdhdbdhehehehrhrhthrjfucchffjjd ftfju

What is the correct value of x

Answers

Answer:

45°

Step-by-step explanation:

The triangle is right isosceles.

It is right as the side is the diameter of the circle.

It is isosceles as two sides marked as equal.

Acute angles are same and equal to:

90°/2 = 45°

Correct option is 45°

Answer:

<M=90°[inscribed angle on diameter is 90°]

<N=<L=[base angle of isosceles triangle]

now

<M+<l+<N=180°[sum of interior angle of traingle]

[2x-5]×2=180-90

4x-10=90

x=100/4=25

x=25

Use technology to solve for x 3^x -4 = 6x -7

Answers

Answer:

there is no solution for X

Step-by-step explanation:

Can someone please help me with math oh ya no links pls

Answers

I think its option c, if you reflect it over the y axis it will be right above it and if you go 270 degrees counter clockwise thats like going from 9 pm to 12 am

12 am is right above 9 pm but it occurs before 9pm.

140% of 15 step explanation?

Answers

Answer:

21

Step-by-step explanation:

Write the problem as a mathematical expression.

140% ⋅15

Convert  140 %  to a decimal.

1.4 ⋅15

Multiply 1.4 by 15.

21

Hope that helps!

Nancy works at Yogurty's for $5.35 an hour. Last week, she worked 30 hours.
a) How much did she earn?
b) Nancy received a 25¢/hour raise this week. She worked 25 hours. How much did she earn?

Answers

Answer a) $160.5
Answer b) $140
answer for A:

$160.50

explanation:

she worked for 30 hours so that means she earned $5.35 per hour. so all you have to do here is $5.35 x 30 which gives you $160.50.


Answer for B:

$140

explanation:

25¢ is the same as $0.25 so first of all, add 0.25 onto $5.35 which gives you $5.60.

Now, (this is just the same equation as part A but with different numbers), since she earns $5.60 per hour and worked 25 hours, all you have to do it $5.60 x 25 which gives you $140.


Hope this helps :)

seven multiplied to the sum of twelve and four

Answers

I think the answer is 112

Answer:

I think answer is the 112

Find the value of x
X

Answers

Answer:

20 or 18

Step-by-step explanation:

The value of x is 10.

What is proportion?

In general, the term "proportion" refers to a part, share, or amount that is compared to a total.

According to the concept of proportion, two ratios are in proportion when they are equal.

From the triangle it can be assume that ΔPSR is similar to ΔPQR.

Then, the ratio of corresponding sides of triangles are proportion.

So, PQ/ PS = QR/ RS

9/15 = 6 /x

9x = 90

x= 90/9

x= 10

Thus, the value of x is 10.

Learn more about proportion here:

https://brainly.com/question/29774220

#SPJ2

Please answer ASAP I NEED HELP

Answers

Answer:

450 cm^3

Step-by-step explanation:

( 1/2 (5+7.5) 6 ) 12

5x + 19.95 = 35
Solve x

Answers

Answer:

X = 3.01

Step-by-step explanation:

To solve for x, you first need to get x by itself. So you would minus 19.95 from both sides. Which would then be

5x = 15.05

Again x is not by itself so you would divide both sides by 5, the eqation would then be

x = 3.01

Which is the answer. If you want you can double check your work by putting the answer back in the eqaution.

5(3.01) + 19.95 = 35

If the statement is true that means you have the right answer

15.05 + 19.95 = 35

35 = 35

We are correct! Hope this helps with your question and how to do others like it.

please answer fast need help

Answers

i think it’s maybe d i’m not for sure.

PLEASE HELP I WILL MARK BRAINLIEST!!

Answers

Answer:

79 degrees.

Step-by-step explanation:

There are 7 total temperatures, 68, 82, 81, 82, 74, 75, and 91 degrees. To find the mean, we add all of the temperatures together and divide it by the number of tempuratures-- 7.

68+82+81+82+74+75+91 = 553.

553 / 7 = 79.

Hope this helps!

Help me if u can thnx ✨✌️

Answers

Answer:

40/9

$189

Step-by-step explanation:

1 2/3 / 3/8 =

4 4/9 = 40/9

6.85 x 315 - 6.25 x 315 = $189

Hope that helps!

Answer:

ik gonna let u solve this question but I explained what u need to do to solve it

What percent of 513 is 248

Answers

Answer:

48.34%

Step-by-step explanation:

Answer:

48%

Step-by-step explanation:

248/513 is .483430799, so rounded is 48%

Find the area of the shaped region

Answers

Answer:

Assuming π is represented by 3.14, the correct answer is [tex]50.24m^2[/tex].

Step-by-step explanation:

Because the question is asking for the area of the shaded region, you can ignore the non-shaded versions of the diagram. The formula of finding the area of a circle is [tex]\pi r^2[/tex], where r is the radius of the circle. Since the radius of the shaded circle is [tex]4m[/tex], you can infer that the area of the shaded region would be [tex]4^2 * 3.14[/tex] = [tex]16*3.14[/tex] = [tex]50.24m^2[/tex].

find the mole fraction of benzene and toluene in solution containing

(a) equal mass of each

(b) equal molecules of each ​

Answers

Answer:

Hello There!!

Step-by-step explanation:

I think the answer is possibly (b) equal molecules of each .

hope this helps,have a great day!!

~Pinky~

Which of the following correctly shows the length of each radius, the point where the circles intersect, and the equation of the tangent line at this point?

Answers

Answer:

Length of the radii of the circles → 4 units and 1 unit

Equation of common tangent → x = 4

Step-by-step explanation:

From the figure attached,

Length of radii of each circles are,

Radius of circle S = 4 units

Radius of circle T = 1 unit

Common point where the circles are touching → (4, 1)

Common tangent to these circles is a line perpendicular to x-axis passing through x = 4,

Equation of the tangent will be,

x = 4

Mary wants to find this product. 58 x 20 How can Mary find the product? A. 0 +16 + 100 B. 0 + 160 + 1000 . C. 58 + 16 + 100 D. 58 + 16 + 1000​

Answers

Answer:

B

Step-by-step explanation:

58×20=1160

0+160+1000=1160

Question 2 (1 point)

What is the length of a day-night cycle? Is it the same everywhere on Earth?

12 hours - yes; because the sun rises and sets in the exact same place every day

relative to Earth.

12 hours - no; because depending on where you are on Earth, you have a

different amount of sunlight.

24 hours - yes; because the sun rises and sets in the exact same place every day

relative to Earth

24 hours - no; because depending on where you are on Earth, you have a

different amount of sunlight.

Answers

Answer: 24 hours - no; because depending on where you are on Earth, you have a  different amount of sunlight.

Step-by-step explanation:

The day-night cycle is a complete day or a complete rotation of the earth around its axis. This takes 24 hours which is why 24 hours is the length of a full day.

People around the world however, do not get the same amount of sunlight or darkness and this is because of where they are on Earth. Due to the way the planet is tilted on its axis, some areas see sunlight more than other in a period and others see more darkness.

Write the quadratic equation in standard form:
-3x^2 + 2x + 6 = -x^2

Answers

Answer:

Hi! The answer to your question is -2x^2+2x+6=0

Step-by-step explanation:

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☆Brainliest is greatly appreciated!☆

Hope this helps!!

- Brooklynn Deka

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